Resin Impregnating Device for Basalt Fiber Reinforcing Bars
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Solution Overview
Problem
The existing resin impregnating method for producing reinforcing bars with basalt fibers is inadequate as it fails to achieve sufficient strength due to insufficient impregnation of thermoplastic resin into the fibers.
Innovation Solution
A method involving passing reinforcing fiber strands through a bath of liquid thermoplastic resin while repeatedly spreading and converging them perpendicular to their travel direction, facilitated by a resin impregnating device with guide members and through holes, enhances resin impregnation and integration with the fibers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the core material is immersed in a bath of molten polymer using conventional resin immersion method, then the polymer layer is formed around the core material, but the basalt fibers are insufficiently impregnated with the thermoplastic resin resulting in insufficient strength
Solution Approach 1:
The patent applies dynamics by making the fiber bundle move dynamically through the resin bath using a reciprocating mechanism. The fiber bundle moves back and forth in the resin bath, continuously changing its position and orientation, which ensures thorough and uniform impregnation of the thermoplastic resin into all fibers of the bundle, thereby achieving sufficient strength.
Solution Approach 2:
The patent employs periodic action through the reciprocating movement of the fiber bundle in the resin bath. The periodic back-and-forth motion repeatedly submerges different portions of the fiber bundle into the resin, ensuring complete and uniform impregnation over time, which resolves the issue of insufficient resin penetration and improves the strength of the reinforcing bar.
2Manufacturing precision
If the fiber bundle is moved back and forth in the resin bath using reciprocating movement, then the thermoplastic resin is thoroughly and uniformly impregnated into the fibers, but the processing time increases
Solution Approach 1:
The patent applies partial or excessive action by implementing a reciprocating movement that moves the fiber bundle back and forth multiple times through the resin bath. This excessive action ensures that every portion of the fiber bundle receives sufficient resin impregnation, achieving uniform saturation throughout the bundle, which directly addresses the uniformity issue while accepting the increased processing time as necessary for quality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach ensures thorough impregnation of thermoplastic resin into the reinforcing fibers, resulting in a reinforcing bar with sufficient strength and improved tensile properties.
Implementation Method 1
passing a plurality of pieces (strands) of the reinforcing fiber material through a bath (storage tank, reservoir) that holds the thermoplastic resin material in a liquid form
Implementation Method 2
impregnation (coating) of the reinforcing fibers with the thermoplastic resin is promoted, whereby a reinforcing bar having sufficient strength can be obtained owing to the thorough integration/incorporation of the thermoplastic resin (polymer) with the reinforcing fibers
Data Source
AI summary
A resin impregnating device (1) is used in a method for producing a reinforcing bar and has a chamber for holding a liquid thermoplastic resin. A plurality of guide plates (4A-4C) is arranged in the chamber along a traveling direction of a plurality of strands of reinforcing fiber material (Fb). Through holes (41) in two of the guide plates (4A, 4C) guide or spread the strands of the reinforcing fiber material Fb away from each other, and a single through hole (42) in an intermediate one of the guide plates (4B) guides or converges all the strands of the reinforcing fiber material (Fb) towards each other.